I don't think he's hiding this? So what's the point of your post? Alt accounts are allowed, you just cannot join the same campaigns with them
I'm pretty sure he was participating in one of Lutpin's campaigns with both of his accounts, but I checked and T&C of said campaign (can't recall which one was it) and there was nothing there about alt accounts. If advertiser and manager are OK with that - then it's their problem.
Edit: Yup, He's got 2 spots, full and legendary in 777coin campaign:
https://docs.google.com/spreadsheets/d/1JW8oWUht5IasnjkflAmu89ek322QFu6YmMjqYnG2W_o/edit#gid=0